answersLogoWhite

0


Best Answer

Prime numbers have no factors. They are numbers that are divisible by only themselves and the number 1. Therefore, of the set {1, 2, 3, 4, 5, 6, 7, 8, 9}, the following numbers are primes: {2, 3, 5, 7}

User Avatar

Wiki User

โˆ™ 2010-10-28 12:34:40
This answer is:
User Avatar
Study guides

What is the prime factorization of 24

What is the prime factorization of 54

What is the prime factorization of 64

What is the prime factorization of 34

โžก๏ธ
See all cards
4.86
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
14 Reviews

Add your answer:

Earn +20 pts
Q: Is 1 2 3 4 5 6 7 8 9 a prime number?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Basic Math

Is 97 the largest prime number?

No. The largest prime number is unknown.Actually, there is no "largest prime number".2*3+1=7,a prime number 2*3*5+1=31 2*3*5*7+1=211..........


Which is the lowest prime number 0 1 2 3 5?

1 is the lowest prime number. Extra: 2 is the ONLY even prime number.


What is the reciprocal of the smallest odd prime number?

1/2


How do you tell if a number is prime?

A prime number cannot be divided by any other number except for 1 and itself and result in a whole number (positive integer). For example, 3 is a prime number. You can divide 3 by one or three and get a whole number. If you divide three by any other positive integer (for example 2) you get a fraction (or a decimal). 10 on the other hand is NOT a prime number. 10 is divisible by 1 and 10, but it is also divisible by 5 and 2: 10/2 = 5 10/5 = 2 If a number cannot be divided by any whole number other than itself or 1, with a whole number as the result the number is prime. 1/1=1 prime 2/2=1, 2/1=2 prime 3/3=1, 3/1=3 prime 4/4=1, 4/1=4, but 4 can also be divided by 2 with a whole number as the result 4/2=2, so it is not prime. Just think if are there any two numbers that can be multiplied together to get the number other than itself and 1. If there are, it is not prime. For example 25 is not prime bexuse 5x5=25. 13 is prime because no whole numbers, other than 13 and 1, can be multiplied together to get 13. 1-prime 2-prime 3-prime 4-not prime (2x2=4) 5-prime 6-not prime (2x3=6) 7-prime 8-not prime (2x4=8) 9-not prime (3x3=9) 10-not prime (2x5=10) 11-prime 12-not prime (3x4=12, 2x6=12)


What are the prime factors of 30?

the answer is 2,3,and5They are: 2, 3 and 521 2 3 5 Ans 2. 2 3 5. '''1 is not a prime number'''. (A prime is a number with '''exactly''' 2 factors. 1 has only one factor.)The prime factors of 30 are 2 x 3 x 5.

Related questions

Is 97 the largest prime number?

No. The largest prime number is unknown.Actually, there is no "largest prime number".2*3+1=7,a prime number 2*3*5+1=31 2*3*5*7+1=211..........


Which is the smallest prime number 1 2 3 4?

The smallest prime number is 2.


Which is the lowest prime number 0 1 2 3 5?

1 is the lowest prime number. Extra: 2 is the ONLY even prime number.


What are the prime numbers between 1 to 10?

2 3 5 7 (the number 1 is NOT a prime number).


what number is a prime number from 1 to 6?

1, 2, 3, 5


Is there an Infinate number of prime numbers?

The number or prime numbers in infinite. Prime numbers can only be divided by 1 and the prime number itself. If you multiply all known prime numbers (you must not leave out any of them) and add 1 to the product the result is another prime number. E.g. 2 * 3 + 1 = 7 (prime) 2 * 3 * 5 + 1 = 31 (prime) 2 * 3 * 5 * 7 + 1 = 211 (prime) ... infinity


What is the prime numbers in 1 2 3 6?

A prime number has 2 factors; 1 and itself. 0 and 1 are neither prime nor composite, so the prime numbers are 2 and 3.


What is the lowest prime number 0 1 2 3 or 5?

The lowest prime number that exists is 2.


What is the smallest number which is exactly divisible by all the numbers from 1 12?

27, 720 1 is prime 2 is prime 3 is prime 4 = 2^2 (number must have 2 factors of 2) 5 is prime 6 = 2*3 (number must have at least 1 factor of three and one factor of 2) 7 is prime 8 = 2^3 9 = 3^2 10 = 5*2 11 = prime 12 = 2*2*3 2*2*2*3*3*5*7*11 = 27720 * * * * * 1 is not a prime (nor is it a composite number). The characteristic of prime or composite is defined for integers greater than 1.


Can a prime number have 3 factors?

A prime number has only 2 factors, 1 and itself.


Why is 6 a prime number?

It is not prime - you can divide it by 2 or 3; a prime number can only be divided by itself and 1


What numbers are prime from 1 2 3 4 5 6?

1,2,3,5,7,11,13,17,19,23,29,31.... A prime number has exactly two factors. 2 is prime (its factors are 1 and 2) 3 is prime (its factors are 1 and 3) 5 is prime (its factors are 1 and 5) 1 is not prime (its only factor is 1, this is 1 factor, not 2) 4 is not prime (it has 3 factors: 1, 2, and 4) 6 is not prime (it has 4 factors: 1, 2, 3, and 6)

People also asked